Lay-motion for looms.



- PATBNTED DEC. 10, 1907.

A. E. RHOADES.

LAY MOTION FOR LOOMS.

APPLIQATION nun my 2, 1907.

2 SHEETS-SHEI1T 1,

No. 873,606. PATENTED DEC. 10, 1907.

A. E. RHOADES.

LAY MOTION FOR LOOMS.

APPLICATION FILED MAY 2, 1907.

2 SHEETSSHEHT 2.

' UNIT-ED s AT s PATENT OFFICE.

ALONZO n- RHOADES, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO 'DRAPER COMPANY, OF

HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

LAY-MOTION iron Looms.

Specification of Letters Patent Application filed May 2. 1907. Serial No. 371,365.

To allwhom it may concern: 1

Be it known that I, ALONZO E. RHOADES, a citizen of the United States, residing in Hopedale, county of Worcester, and State of 5 Massachusetts, have invented an Improvement in Lay-Motions for Looms, of-whioh the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

lay by the operation of the protection mech-..

anism subjects the lay-swords to great strains, and frequently they are broken by such action, the movement of the crankshaft continuing, by reason of the momentum of the parts, after the sudden stoppage of the lay.

a novel and efficient direct connection between the crank-shaft and the lay-swords, with automatic means to ermit a yielding of the said connection shou d the lay be sudas by the operation of the protectionmechs anism. The connection is so constructed and arranged that any continued movement of the crank-shaft after such stoppage of the lay is takenup and absorbed by means within or forming a part of the connection, so that the lay-sword is relieved from forcible break ing strains.

, The various novel features of my invention will be fully described in the subjoined s ecification and particularly pointed out in .t e following-claims.

Figure 1 is a transverse sectional view of a portion of a loom, with one embodiment of my invention applied thereto, the lay being shown at back center and with the parts in normal operating condition; Fig. 2 is a view similar to'Fig. 1, but showing the change in the novel part of the a paratus just at the beginning of the perio which the revent' In my present invention I- have provided denly stopped before it reaches front center,

I protection mechanism operates if the shuttle is improperly boxed Fig. 3 is an enlarged longitudinal section of my novel form of connectionbetween the lay. and'the crank-shaft; Fig. 4 is a cross-sectional detail on the. line 4:4,Fig. 3, looking toward the right.

Referring to Figs. 1 and 2 the loom-side 1, the lay 2 and its attached lay-sword 3, the crank-shaft 4 and crank 5, the frog 6 and the. dagger 7 mounted on the lay and adapted to cooperate with the frog when the shuttle fails to box properly, may be and are all of usual construction'andoperate in well known manner, the frog 6, dagger 7 and rock-shaft 8 on which the dagger is mounted forming a portion of the protection mechanism of the loom, as is customary.

Inasmuch as the two connections between the lay-swords and the crank-shaft are .the same onlyone of said connections is-herein or telescopically connected, to have a relative longitudinal movementat times, one member being pivotally attached to the la sword and the other member to the era shaft. One of said members-9 is shown as tubular, and reduced in internal diameter at 10, Fig.3, near its rear end, andhaving at such end a concave seat to receive a segmental bushin 11 adapted to partly embrace and take the thrust of the crank-pin 5 on the'forwardbeatof the lay, a metal strap 12 detachably secured in place by a bolt 13 surillustrated and described in detail. In. the =present embodiment of my' invention said connection comprises two members slidably rounding the crank-pin, as shown in 1 and2, to take up the oil on the backwardbeat. The rear end 0 them'ember'Q is rec- I tangular in cros ssection, at.14 ',the straight m the reduced bore 10 of the member Q, and

having a.preferably rectangular head 18 provided with a concave seat for an annular bearing lining or bushing 19, Fig. 3, through which is extended a pin or stud '20 by which the mlember is pivotallyattached' to the layswor I A metal strap 2 holds the bushingin place Jon the head andis secured to the upper and lower-faces of thelatter by a suitable bolt 22,

' I ears,' as clearly the ends" 'of the strap being outturned to form, apertured cars 23 oppesite andparallel to the ears15.

Headed rods 24 are extended through the shown, the head of one rod being at the front end of the connection and the head-of the other rod at the rear end, the Y to receive check-nuts25, a pair being set up other endsvof the rods'being screw-threaded on each rod at opposite sides of the adjacent .ear or 22, as the case may be.

Suitable washers, 26. are interposed between the. ears and the washers, as herein shown, andby means of the nuts the maximum distance between the front and rearpairs ofears is adjusted and regulated,and while thei'ods24 are rigidly connected to one freely slidab e at t the other car.

earof each air b the check-nuts they are eir opposite ends through I A spiral spring 27 surrounds the cylindrical -,,body 17, of theone member of the connection,and is interposed between its head 18 and the internal shoulder 9 of the member 9,' .the spring tending to move the said memberg inppposite directionsto extend th and elongate the connection.

lng actionislimited by the rods 24, which Such extend- -are tension members when subjected to any strain, as" will appear hereafter, the spring having considerable ower, but. yielding to 9 allow contraction o f t e'two-part connection when the lay iststop-ped bythe operation of the protection mec amsm. v 'A metal framej28 embraces theyieldin' or com 'ressible connection and is fulcrume on I the. ead 1801? one member by atransverse pin 29, the sidesof the frame bem rearwardly extended to formlatches' 30 notc ed'at 31 to at times cooperate with the projections 16 on the member. 9, asshown in Flg. 1

The latches and cooperating (prpjections v 5. when the late constitute a species of lockingi evice, and es'3O are in operative pos1-,

tion, asin Fig. 1, it will be manifest that the two members 9 and 17 cannot be moved'longitudinally toward each other, or telescoped,

nor can they be movedoutward or extended,

because of-the rods 24. At such time the connection between the crank shaft and-the lay-sword is perfectl rigid and unyielding.

A leaf-spring 32 astened onthe member 9 bears on a cross-barQ33 of the. latch-frame andserves to reset the latter with'the latches 1n engagement-with the projections 16 after the locking device has been rendered inoperative. w 1

The sides of the latch frame depend'at 34 and are f'connected' ,b a bridge v35 below the lower rod, 24,- the bridge'being convexed 'on its under surface, see Fig. 3, and a releasing device is arranged tc-intermittin'gly cooper-r;

. vals. Sai

ate with said bridge and render the locking device ino erative at redetermined interreleasing evice consists of a casting 36 resting on a bracket 37 bolted'to theloom-side, the casting being adjustably secured to the bracket by-a bolt 38 extended as i through a slot 39 in thecasting, Figs. 1 and 2.

I The pasting has a forwardly and upwardly inclined cam-face 40, and then a downwardly inclined cam-face 41at its frontend, the re-- leasing device being so located that as the lay is moving forward the bridge 35 will engage and ride up on the face 40. The rise of the bridge swings the latch frame up and releases the latches 30 from the lugs or. projec tions 16, see Fig. 2, just before the protection period begins, and the locking means is held inoperative as the lay continues its forward movement until the dagger 7 is either lifted or engages such frog if the shuttle is improperly boxed. In the former case the resetting spring 32 o crates to effect engagement of the latches an projections just as soon as the bridge 35' passes over the high point of the camface of the releasing device and down the face above the frog 6, the shuttle boxing properly,

41 thereof,\s0 that. the two-part connection the dagger and frog brings the lay to a sudden stop before it reaches front center and while" againresurnes its rigidity prior to the beating m of the-filling. Should the protection mech amsm operate, however, the cooperation of the locking device is inoperative, so that any continued movement of the crank-shaft will telescope the two members 9' and 17 of the connection, compressing the .3 ring 27. The

1 spring thus takes up and absor s such m'o'vement of the crank-shaft, relieving the lay-' sword'ofithe' strain andshock to which it" would otherwisebe subjected and obviating .the breaking tendency due to sudden stoppage of the lay.

Referrlngto I Fig. I, where the lay' s at back center, it will be seen thatthe co cc"- tion is rigid at the time the forward stroke or I beat of the lay is begun,.so that the full power of the crank-shaft is thentr'ansmitted through tive the momentum of the lay is sufficient to continue itsforward movement without any 'the' direct connection to the lay; At the time the locking means is'rendered mcperae compression of the spring 27, so that if the shuttlefisproperly boxed the locking device will be restored to operative condltion, making the connection rigid, while the filling is the ull of the crank-shaft is transmitted to beaten in. After the lay passes front center the ay through the rods 24, which are thus hen the rods 24 slide through the loosely connected ears,-the upper rod through the ear 23 and the lower rod through the ear 15.

My invention is not restricted to the precise construction and arrangement herein shown and described, as various changes or modifications in different details may be 'made by those skilled in the art without defrom the spirit and scope of my inlocking device to prevent compression of said connectlon, and means to release automatically the locking device at a predetermined point on each forward beat of the lay.

2. In a loom, in combination, the lay, the crank-shaft, a ielding connection between them, a device to normally prevent yielding of said connection, and means to render said said connection to yield when the movementdevice inoperative for a predetermined portion of each forward beat of the lay.

- 3. In a loom, in combination, the lay, thecrank-shaft, a two-part connection between them, the members being relatively movable longitudinally, a spring to cushion such movement and normally acting toextend the members, a latch to positively lock said members from relative movement, and means to-automatically release the latch at a predetermined point on the forward beat of the lay.

4. In a loom, in combination, a frog, a lay having a dagger to cooperate with the-frog and stop the lay when the shuttle is improperly boxed, a crank-shaft, a direct connection between it and thelay, and automatic means operated independently of cooperation of the da er and frog to permit of the lay is stopped by cooperation of the dagger and frog.

5. The combination in a loom of a lay, a

crank-shaft, protection mechanism to stop the lay when the shuttle is improperly boxed, a compressible connection between the lay and the crank-shaft, a device to prevent compression of said connection, and means to automatically render. said device inopera- 'tive just prior to the time for the protection mechanism to operate if the shuttle is improperly boxed.

6. The combination in a loom of'a lay, a crankshaft, protection mechanism to stop the lay when the shuttle is improperly boxed, a yielding connection between the lay and the crank-shaft, a latch to maintain said connection unyielding, and means torender said latch inoperative during the protection period on each forward stroke of the lay,

whereby stoppage of the lay by operation of the protection mechanism will cause the said connection to yield.

7. The combination in a 100111 of a lay, a crank-shaft, protection mechanism to stop thelay when the shuttle is improperly boxed, a two-part, spring-extended connection between the lay and the crank-shaft, means to limit extension of said connection, a latch to positively hold the connection extended,

-means to render the latch inoperative during the protection period on the'forward stroke of the lay, and a device to reset the latch automatically.

8. In a loom, a lay and lay-sword, a crankshaft, abonnection including two. telescopically movable members pivoted respectively to the lay-sword and the crank-shaft, a spring to extend said members, a lug on one of said members and a cooperating latch on the other member, to positively maintain said members extended, and means to disengage the latch from the lug for a predeternnned period on each forward beat of the lay, whereby if the lay is stopped during such period the connecting members may telescope, compressing the spring during continued movement of the crank-shaft.

9. In-a loom, in combination, a lay and a crank-shaft, a connection between them in cluding two lon itudinally rigid members one of which is slidable upon the other, an extending spring, tension rods to limit the extending action of the spring, a springlatch to prevent relative movement of the sliding members to shorten the connection, and a fixed cam to engage and release the latch during a predetermined part of the forward beat of the lay.

10. In a loom, in combination, a lay and a crank-shaft, a compressible connection between them, including two relatively slidable members pivotally connected with the lay and crank-shaft respectively, means to positively limit extensionof said members, a spring to extend them, a device to lock said members in extended position, protection devices, to stop the lay on its forward beat and means to render inoperative the locking device on each beat of the lay during the protection period, whereby if the rotection devices operate to stop the lay, t e connection between it and the laymay be compressed against the action of the extending s ring.

11. In a loom, in combination, a ay and lay-sword, protection mechanism to stopthe lay, a crank-shaft, a direct connection between it and the lay-sword, automatic means operated independently of the rote ction mechanism topermit shortening 0 said connection during the protection period, and a shock-absorber forming a part of the connection, to relieve the lay-sword from strain when the protectlon mechanism operates.

' g two slidably connected, longitudinally I rigid members adapted to be pivotally attached to the lay-sword and crank-shaft, respectively, a sprin to extend said members, tension rods to mit such action of the spring, a lug fixedly mounted on one member, and a spring-set latch on the other memher, to normally cooperate-With the lug and maintain said members locked in extended position.

13. In its lay-sword, a crank-shaft, ayieldable connection between the. latter and the laysword, and means to maintain said connection ri id and unyieldingly as the forward beat 0 the lay is begun, and to thereafter operate on each forward beat to permit the a loom, in combination, a lay and connection to yield if the lay is stopped duribng a predetermined portlon of its forward eat. I 14. In a loom,'in combination, a lay and its lay-sword, a crank-shaft, a dlrect connection between it' and the lay-sword, and a;

means to render said connection longitudinally yieldable duri apredeterminedportion of each forward fieat of the la movement. has been initiated an beating in the filling.. t

- In testimony whereof, I- have signed my name to this specification, in the presence of two subscribing witnesses. ALONZO Witnesses:

CLARE HILL'DRAPER,

EUGENE BEAUDRY;

prior to after its E. 'RHOADES: 

